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How to do a good job of intelligent construction weak construction technology and quality management?
The intelligent building weak current project is a technological project that uses intelligent buildings as carrying platforms and configures various high-tech systems for buildings to meet people's demand for efficient, comfortable, and convenient construction environment space. The effective implementation and quality control of weak current projects is a key technology for intelligent building construction, and it is crucial for intelligent engineering construction. This is also an important guarantee for the safe use of buildings and plays a role for various scientific and technological systems and auxiliary equipment. The role of escort.
How to do a good job of intelligent construction weak construction technology and quality management?
Therefore, before implementing the intelligent construction weak current project, we must strictly abide by the three elements of weak current system design, product technical standards, construction quality management and project quality management, and closely follow the above three factors to implement and manage the intelligent project to ensure Intelligent buildings can operate safely, efficiently, comfortably, and economically.
Prerequisites for Construction of Intelligent Building Weak Electricity Project
1) Overall design plan for weak current engineering system. The first step is to conduct in-depth analysis of the functional requirements for building use, conduct detailed technical discussions with technical personnel, master the design criteria of the project and the functional orientation of the system, and determine the overall from the consideration of the comprehensive factors of applicability, advancement, and economy. Design.
2) The choice of a premium system integrator (primary contractor). At present, the operation mode of the intelligent building weak current project in China is basically coordinated, managed and controlled by the system integrator or the owner, among which the selection system integrator accounts for the main part. Therefore, choosing a competent system integrator is the key to the success or failure of the entire weak current project, because it is an organic "integration" of technical implementation capabilities, project quality management, and coordination of organizational capabilities.
3) System maintenance and management of weak current projects. The normal operation after the implementation of the weak current project is a sign of the successful implementation of the project, but the safety, efficiency, comfort, and economy are the ultimate goals of the intelligent construction weak current project. Therefore, professional operation training for building management personnel is also required during project acceptance. Enhance system maintenance and management levels, and ongoing system maintenance and management are the basic guarantees for achieving the ultimate goal of intelligent buildings.
Technical Management Points of Intelligent Building Weak Electricity Engineering
1) Technical management of weak current engineering interface. In the early stage of the project, it needs to be determined according to the requirements of technical design and the terms of the contract:
1 Engineering interface between each system in the weak current and between each subsystem and the electromechanical equipment, civil engineering and decoration major;
2 Project scope and responsibility interface between product suppliers, work contractors and construction units;
3 Modify, adjust and reconfirm the above mentioned interface during the implementation process. This is one of the key difficulties in technical management in weak current projects. Before construction, review and confirm the drawings, materials, technical process and construction design mentioned above to ensure that the equipment list, monitoring point table and construction drawing in the contract are consistent to ensure the integrity of the system on the hardware equipment. And meet the requirements of various technical parameters, so as to ensure the duration, quality and reduce rework.
2) Construction management coordinated by various subsystems. Weak electricity engineering is a cooperative job that requires the professional close cooperation and coordination of various subsystems. Valves, water pipe temperature, sensors, flowmeters and flow switches and their installation, hole location, boss welding, and the coordination of dampers and actuators must all be coordinated with the corresponding work. Therefore, after each type of work is completed, registration of construction records must be carried out to form a complete set of engineering technical files, and project engineering acceptance should be carried out according to the acceptance criteria of the type of work and design drawings.
The main contents of the acceptance of intelligent building weak current project
At present, there is no standard completion acceptance system for intelligent building weak current projects in the country, but the acceptance standards for various localities have been gradually introduced. Shanghai Municipality issued the "Intelligent Building Construction and Acceptance Specifications (DG/TJ08-601-2001)" as the current acceptance criteria for weak current projects, and strict implementation of this specification is required in the future. This specification contains six subsystem acceptance criteria for smart building weak current projects:
1) Acceptance of electrical wiring and grounding systems. The detailed provisions are made on the common parts of laying and grounding systems involved in the sub-systems of weak current projects. For example, different systems, different voltages, different currents of the line tube sub-slots, in charge of laying; pipe and pipe, the connection between the pipe and the box; pressure ring, lightning down lead, lightning protection welding quality; strong, weak The construction safety of the system grounding line and other types of work are the basis for ensuring the safe operation of the weak current system. Each site must be carefully inspected to ensure construction quality. Acceptance should be carried out in accordance with the corresponding acceptance criteria. If the subsystem has special requirements, then make corresponding provisions.
2) Acceptance of construction equipment monitoring system. It is the centralized monitoring, control and management of the application equipment in the building, and detailed provisions for the commissioning and acceptance of monitoring system equipment, input equipment, and output equipment. Specifies the debugging procedures, test items, and test methods for individual equipment such as DDC, cold and heat source equipment, new fans, air supply and exhaust air, air handlers, VAV end equipment, water supply and drainage systems, power distribution, lighting equipment, etc. And requirements, in addition to compliance with the monitoring system acceptance specification, but also to comply with the acceptance criteria of the construction equipment automation system.
3) Acceptance of security system. The defense system consists of anti-theft, anti-human invasion alarm system, patrol management system, visitor and alarm system, television monitoring system, population control system, garage management system and communication system. Strict requirements and acceptance criteria for the installation and construction of system application equipment such as cameras, monitors, decoders, card readers, and main control equipment, etc., as well as system commissioning and installation requirements for individual equipment in each subsystem The requirements for technical conformity inspection are respectively required to determine whether the system acceptance result is a definite standard that is qualified, basically qualified or not qualified.
4) Acceptance of communication automation system. Mainly for the installation of communication equipment, the construction of integrated wiring, single equipment debugging and system installation and testing, engineering acceptance and other procedures have made detailed provisions. The peripheral devices that specify the functional requirements of communication automation include terminal equipment such as cabinets, cables, optical fiber cores, and VSAT antennas, as well as lightning protection grounding and structured wiring. In accordance with the second part of the acceptance criteria for intelligent building systems, test acceptance and final acceptance are carried out.
5) Acceptance of automatic fire alarm and linkage control system. It consists of three systems: fire detection, alarm, and intermodal control. The installation and commissioning of the three systems and the ancillary equipment of the system include various types of alarm detectors, alarm controllers, floor displays, fire-fighting equipment, and control center consoles. Requirement for commissioning, testing, linkage debugging and system testing, acceptance, and determination of conformity acceptance.
6) Acceptance of office automation system. It is a clear provision for the implementation of office automation for the installation and commissioning of computer network systems, including Ethernet, DDN, IDSN, LAN, OC3, WAN and other network implementations, application software installation, and terminal equipment installation including computers, hubs, 1/0 devices, routers , UPS power supply, etc., must comply with the operating manual and system test specifications, first single device debugging, then the implementation of local area commissioning, and finally the overall system debugging, do the initial test, debugging, final test record, to achieve the normal operation of the system Qualified acceptance.
Quality Control Measures for Intelligent Building Weak Electricity Projects
The quality control of weak current projects should be a full range of quality control in all aspects of the design, construction and commissioning of the project implementation:
1) Quality control in the design phase. Before the construction of the project, a review of the design drawings shall be conducted. The system design, functional description, technical design, equipment selection and contract, and requirements for the analysis of the owner and functional requirements of each subsystem shall be reviewed and reconfirmed; the identified engineering interface shall be checked. During the technical handover between various specialties and subsystems, the interactive data is checked and confirmed to meet the requirements; the design pipeline of the controlled object is in place; both the signal interface interface functions meet the design requirements for review; a comprehensive review of the design drawings ensures the equipment list, The monitoring point table and the construction drawing are exactly the same, and the minutes of the review shall be signed and signed by the designer, the constructor and the construction party. This can be used as a supplement to the construction technical documents.
2) Construction quality control. According to the design drawings and related technical documents of the trial meeting and the overall design plan of the relevant project construction regulations and documents, the quality and quantity shall be strictly followed according to the construction requirements of the drawings. If there is any inconsistency with the drawings, it shall not be changed in private. Designers jointly explore solutions, strictly implement standardized, standardized, and operable quality control procedures; strictly control the construction quality of individual subsystems and installation of individual devices, and do a good job in testing and commissioning records for various systems and equipment; Inspection of peripheral equipment and materials involved in the intelligent building weak current project shall be carried out. Spot checks shall be carried out on materials that are unclear or have unclear marks, have doubts on quality assurance, and do not comply with the signed contract. Imported materials require customs commodity inspection certificates and certificate of origin , do a good job for material inspection, construction supervision after review by the supervisor.
3) System debugging quality control. Prior to system commissioning, the technical engineer must prepare a system commissioning plan based on the overall system design, acceptance criteria, contract requirements, and related technical documentation, and organize the implementation after the technical audit confirms. Individual equipment, sub-systems, and integrated wiring shall be subject to quality control in accordance with the corresponding quality specifications and drawings. Good records of commissioning inspection shall be made. Rework shall be promptly rectified and rectification shall be carried out, and debugging shall be carried out until normal operation.
in conclusion
The trend of intelligentization in modern architecture is increasingly demanding for the intelligent management of weak construction and equipment automation of intelligent buildings. The design of a reasonable intelligent system is a prerequisite for meeting the needs of life and reflects the function and level of intelligent buildings in the future. To realize the security, stability, and economic operation of intelligent buildings, it is necessary to constantly improve the construction technology of intelligent buildings, upgrade the weak construction equipment of intelligent buildings, and improve the structure of software control systems.